Determining how much Peanut butter is optimal on a PB&J Sand Sandwich By Mr. Anderson

Procedure Peanut PB&J Sandwiches were prepared for all subjects using 20g of Welch’s Grape Jelly Jelly was spread evenly on 1 slice of Wonder Bread Jiff Peanut butter was spread evenly on a second piece of Wonder Bread. For each test subject, the amount of Peanut butter varied on each of 4 different sandwiches, 10g, 20g, 30g and 40g of peanut butter was used. Subjects were asked to eat ¼ of a sandwich with each of the amounts of peanut butter, given in random order, then asked to give their satisfaction rating % as to how satisfied they were with the sandwich. 20 subjects were used for this test Results for all 20 subjects will be averaged

Results

In our experiment we used a sample size of 20 subjects. This was a single blind study, meaning the subjects were not aware of the amount of Peanut butter they were being given or even what was different about the sandwiches. Subjects were asked to rate their satisfaction as a score between 0-100%. We found that in our experiment, the more peanut butter you put on a sandwich, the higher the satisfaction with the sandwich was. Our graph shows that our results hold true within the range of 10-40g of peanut butter. Further areas of study may be to look at what happens as the amount of peanut butter exceeds 40g.